1961—2018年四川盆地极端伏旱日数准2 a周期变化特征及其可能成因
周斌,王春学,张顺谦

Quasi-biennial Period Characteristics of Extreme Summer Drought Days and Its Possible Causes in Sichuan Basin During 1961-2018
Bin ZHOU,Chunxue WANG,Shunqian ZHANG
图3 1961—2018年四川盆地极端伏旱日数的LFV谱
(虚线为蒙特卡洛置信度)
Fig.3 The LFV spectrum of extreme summer drought days in Sichuan Basin during 1961-2018
(the dashed lines for Monte Carlo confidence)